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    Henri62's Avatar
    Henri62 Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Jun 20, 2010, 08:04 PM
    What should be done if engine light resumes after having below items changed.
    I had etc sensor changed, also changed both oxygen sensors and the catalytic converter. The check engine light appears after I drive 20 miles or more. After mechancic changed sensors he turned off light. The code was a p420 cat code but everythng had been changed. Mechanic said that maybe the computer needs to be flashed.
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #2

    Jun 21, 2010, 07:19 AM

    https://www.askmehelpdesk.com/cars-t...le-303903.html

    Was the converter replaced with aftermarket or O.E.
    You may have a faulty converter.
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